BackRack low-profile drill hardware kit for 2004–2014 Ford F-150 low-profile beds is designed to mount a 21 in. toolbox at bed-rail height by drilling two holes through the top of the bed rail. The kit includes low-profile brackets and four carriage head bolts to secure the assembly; it allows the toolbox to sit at rail height using existing clamps. Not compatible with tonneau cover adapter brackets.
BackRack 04-14 Ford F-150 Low Profile 21in Drill Hardware Kit